JP2001055260A - Container with hinge - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable a lid member to be directly fixed to a container main body, reduce the number of component parts and simplify a structure by a method wherein the container main body is formed of a material of which blow molding can be attained and a hinge portion enabling the lid to be opened or closed is integrally molded at a port of a parison container formed at a pre-stage of this blow molding. SOLUTION: This container is formed into a parison container in which a port 12 and a barrel part 14 have substantially the same diameter and a hinge member 22 forming a hinge 18 is integrally formed at a circumferential edge of the port 12. The parison container is molded by blow molding to bulge out the barrel part 14, thereby a container main body 16 having the hinge member 22 integrally formed at the port 12 is molded. A hinge piece 24 forming the hinge 18 arranged at the lid 20 is connected to the hinge member 22 to constitute the hinge 18 and then the lid 20 is directly fixed to the circumferential edge of the port 12 through the hinge 18 in such a way that it can be turned up and down.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hinged container in which a mouth is opened and closed by a lid attached to the periphery of the mouth via a hinge.

[0002]

2. Description of the Related Art A hinged container whose mouth is opened and closed by a lid supported by a hinge is disclosed, for example, in Japanese Patent Laid-Open No.
There is a conventional one disclosed in Japanese Patent Application No. 99125/99.
That is, this hinged container is applied to a cosmetic storage container such as a wide-mouthed bottle, and a lid body is attached to a peripheral edge of an upper end portion of a cap (lid body) having an open upper end via a hinge so as to be rotatable up and down. The cap is screwed and fixed to the outer periphery of the mouth of the container, and in this state, the lid can open and close the mouth of the container.

[0003] Thus, the opening and closing of the container by the lid which can be freely rotated up and down via the hinge in this way allows the container to be opened and closed with one touch.
For this reason, when a cosmetic such as a cosmetic cream is stored in the container, even when the cosmetic is attached to both hands during the makeup, for example, the lid is lifted and opened with only the fingertip. be able to. For this reason, it is possible to prevent the cosmetics from being stained by grasping the container or the lid by hand, and it is possible to eliminate the trouble of wiping the hands each time.

[0004]

However, in such a conventional hinged container, in a cosmetic container such as a jar, a container body is generally formed of glass, and a hinge is attached to the glass. If it is difficult to open and close the mouth with a hinge, it is difficult to prepare a separate screw-type cap as described above, and attach the lid to the opening peripheral part of this cap via a hinge Will be.

However, since a cap is separately provided to open and close the mouth with the hinge as described above, the number of components is increased by the cap, and a screw portion for screwing the cap to the mouth is provided. It must be formed, and the structure becomes complicated. Therefore, there is a problem that the cost of the hinged container is increased.

Accordingly, the present invention has been made in view of such a conventional problem, and a container body is formed using a material that can be blow-molded, and a port of a parison container formed at a stage prior to the blow molding. By integrally forming a hinge portion for opening and closing the lid in the portion, the lid can be directly attached to the container body, and the number of parts can be reduced and the structure can be simplified. It is an object of the present invention to provide a hinged container that can be used.

[0007]

In order to achieve the above object, according to the present invention, a cover is rotatably attached to a peripheral portion of a mouth via a hinge, and the mouth is freely opened and closed by the cover. In the hinged container closed in the above, the mouth and the body have substantially the same diameter, and a hinge body coupled to the hinge piece formed on the lid is integrally formed on the periphery of the mouth. The parison container is formed, and the body of the parison container is expanded by blow molding to form a container body.

According to this structure, when the parison container including the mouth and the body is formed, the hinge body constituting the hinge is integrally formed on the periphery of the mouth, so that the body is blow-molded. When the container body is formed by swelling, the hinge body is provided integrally with the periphery of the mouth of the container body. Therefore, by connecting the hinge piece provided on the lid to the hinge, the lid is directly attached to the mouth via the hinge. For this reason, since the lid can be directly attached to the opening without the need for an intermediate member such as a cap, the number of parts can be reduced,
Since a means such as a screw for fixing the intermediate member to the outer periphery of the mouth is not required, the structure can be simplified.

[0009]

Embodiments of the present invention will be described below in detail with reference to the accompanying drawings. 1 to 3 show an embodiment of the hinged container of the present invention. FIG. 1 is an exploded perspective view showing a state where a lid is separated from the hinged container. FIG. 2 is a longitudinal sectional view of the hinged container. FIG. 2 is a perspective view of a parison container.

The basic structure of the hinged container 10 of the present embodiment is as follows. A lid 20 is attached to the periphery of the mouth 12 via a hinge 18 so as to be vertically rotatable. Is opened and closed freely. Here, as shown in FIGS. 2 and 3, the parison container 28 in which the mouth portion 12 and the body portion 14 have substantially the same diameter, and the hinge body 22 forming the hinge 18 is formed integrally with the periphery of the mouth portion 12. To form
The body 14 of the parison container 28 is swelled into a predetermined shape by blow molding to form a container body 16. The hinge body 22 provided integrally with the mouth 12 of the container body 16 is provided on the lid 20. It is constituted by attaching a hinge piece 24 forming the hinge 18 formed.

That is, the container 10 with a hinge according to the present embodiment.
As shown in FIG. 1 and FIG. 2, the container body 16 includes a mouth portion 12 and a bottomed body portion 14, and a lid 20 that opens and closes the mouth portion 12 through a hinge 18. . The mouth portion 12 is formed as a rectangular wide mouth,
The body 14 is formed by continuously expanding from the mouth 12 into a rectangular cross section. The hinge 18 is connected to the container body 16.
The hinge body 22 on the side, the hinge piece 24 on the lid 20 side, and the hinge pin 26 arranged between the hinge body 22 and the hinge piece 24.

The hinge body 22 is composed of a pair of projections 22a, 22a arranged at a predetermined interval, and these projections 22a, 22a are integrally formed at the center of the mouth 12 at the rear of the peripheral edge. It is protruded. In the present embodiment, the hinge pin 26 is integrally formed so as to straddle between the projections 22a.

On the other hand, the hinge piece 24 protrudes integrally from the center of the rear edge of the lid 20 to form a pin hole 24a to be fitted into a hinge pin 26.
A is formed with a notched groove 24b communicating therewith. The cutout groove 24b is opened in a fan-shaped cross section, and the center side groove width is slightly smaller than the outer diameter of the hinge pin 26, and the cutout groove 24b is pressed into the hinge pin 26 with its expansion. ing. Therefore, the notch groove 2
By press-fitting the hinge 4b into the hinge pin 26, the hinge body 22 and the hinge piece 24 are connected to each other. With this connection, the hinge pin 26 is kept fitted in the pin hole 24a, and the lid 20 can be easily mounted. It is designed to prevent detachment.

The container main body 16 is formed through a two-step process. First, a parison container 28 shown in FIG. 3 is formed by injection molding, and then, FIG. 1 and FIG. The illustrated container body 14 is formed. The parison container 28 is formed by injecting the heated and melted plastic into an injection mold (not shown). In this injection molding step, the mouth 12 and the body 14 are formed to have substantially the same diameter so that they can be removed from the mold. In addition, at the stage of the injection molding, the hinge body 22 of the hinge 18 is integrally molded with the periphery of the mouth 12 and the projection 2 of the hinge body 22 is formed.
A hinge pin 26 is integrally formed between 2a and 22a.

After the parison container 28 has been formed, a blow molding die (not shown) is set on the body portion 14 before the parison container 28 is cured, and the body portion 14 is bulged by blowing injected from the mouth portion 12. I do. By this blow molding, the body 14 is moved into a parison container 28 shown by a two-dot chain line in FIG.
Are swelled radially and downward as shown by the solid line to form a completed container body 16. At this time, the torso 14
The blow molding for swelling may be either an injection blow method or a stretch blow method.

On the other hand, the lid 20 is formed separately, and the hinge piece 24 of the hinge 18 integrally formed with the lid 20 is formed.
Is connected to a hinge body 22 integrally formed with the mouth portion 12 via a hinge pin 26 to form a hinge 18, and the lid 20 is attached via the hinge 18. A first engaging protrusion 30 is vertically provided at the center of the front end of the lid 20, and a second engaging member detachable from the first engaging protrusion 30 is provided at the center of the front end of the mouth 12 of the container body 16. Projection 3
2 and a hook 34 is formed by the first and second engagement projections 30 and 32. A packing 36 is attached to the back surface of the lid 20. As shown in FIG. 2, when the lid 20 is closed, the packing 36 presses against the upper end of the opening 12 to seal the inside of the container body 16. It has become.

With the above configuration, in the hinged container 10 of the present embodiment, a parison container 28 in which the mouth portion 12 and the body portion 14 have substantially the same diameter is formed by injection molding, and the parison container 28 is blown. The container body 16 is formed by molding and expanding the body 14,
At this time, when the parison container 28 is formed, the mouth 1
The hinge body 22 is formed integrally with the periphery of the second member. For this reason, the hinge body 22 is provided integrally with the periphery of the mouth 12 of the completed container body 16.

As described above, the hinge body 2 is provided on the periphery of the mouth 12.
2 are provided integrally, so that the hinge
By connecting the hinge pieces 24 provided on the opening 0, the lid 20 is directly attached to the mouth 12 via the hinge 18 so as to be vertically openable and closable. The lid 20 thus directly attached is pushed down by the front end, whereby the first and second engagement projections 30 and 32 of the hook 34 are engaged with each other, and the closed state is maintained. The sealed state of the main body 16 is maintained. On the other hand, by lifting the front end of the lid 20 upward, the first and second engagement projections 30 and 32 are disengaged and the hook 34 is disengaged. Thereafter, the lid 20 is pivoted around the hinge pin 26. Mouth 1
2 can be opened. At this time, the operation force at the time of engagement and disengagement of the hook 34 is limited to the two engagement projections 30,
It is set appropriately according to the amount of projection of the projection 32 and the flexibility of the projections 30 and 32.

Therefore, the hinged container 10 of the present embodiment is
Then, the container body 16 can be formed by a simple process of forming the parison container 28 and blow molding the same, and the cover 20 can be directly connected without the need for an intermediate member such as a conventionally used cap. Can be attached to the mouth portion 12 of the container body 16, so that the number of parts can be reduced and the structure can be simplified.

In this embodiment, the case in which the mouth portion 12 and the body portion 14 of the container body 16 are formed in a rectangular cross section has been disclosed. Of course, as long as the parison container 28 can be die-cut, its cross section can be reduced. The shape is not particularly limited, and may be formed, for example, as another polygonal cross section or a circular cross section.

FIG. 4 shows another embodiment, in which the same components as those in the above embodiment are denoted by the same reference numerals, and the description will not be repeated. FIG. 3 is an exploded perspective view of a hinge portion.

That is, in the hinge 18 of this embodiment, a hinge pin 26a is provided separately, and a hinge piece 24 is fitted between a pair of projections 22a, 22a of the hinge body 22. 26a is inserted across the pin holes 22b and 24c of the hinge body 22 and the hinge piece 24. Of course, the hinge body 22 is formed integrally with the periphery of the mouth 12 in the step of forming the parison container 28.

Therefore, even in this embodiment, the mouth 12
The hinge piece 24 of the lid 20 is connected via a hinge pin 26a to a hinge body 22 integrally formed on the peripheral portion of the container body 1 so that the lid 20 is
6, the same operation and effect as in the above embodiment can be exhibited.

FIG. 5 shows another embodiment, in which the same components as those in the above embodiment are denoted by the same reference numerals, and the description thereof will be omitted. This figure shows a sectional view of a hinge portion.

That is, in the hinge 18 of this embodiment, hemispherical projections 26b, 26b as hinge pins are integrally provided on the opposing surfaces of the projections 22a, 22a constituting the hinge body 22, while the hinge piece is provided. 24, concave portions 24d, 24d for receiving these hemispherical convex portions 26b, 26b.
Is formed. Then, the hinge body 22 and the hinge piece 24
Is connected to the hinge piece 24 by a pair of protrusions 22a, 22a.
By being inserted between them, these projections 22a, 22a
The hemispherical projections 26b, 26b are
The hinge 18 is formed by being fitted to d and d.

Accordingly, in this embodiment, the lid 20 is opened and closed up and down around the hemispherical projections 26b, 26b, and the hinge 22 is formed integrally with the peripheral edge of the mouth 12. Then, since the lid 20 is directly attached to the container main body 16 via the hinge 18, the same operation and effect as in the above embodiment can be exhibited.

Needless to say, the structure of the hinge 18 is not limited to the above embodiments, but the container body 16 and the lid 20 may be used.
Various hinges can be configured as long as each hinge component is provided on the side.

[0028]

As described above, the hinged container according to the present invention is configured such that a parison container having a mouth and a body is blow-molded to expand the body. Since the hinge body that forms the hinge is formed integrally with the peripheral edge of the mouth in the forming step, the hinge body can be provided integrally with the mouth. Therefore, by joining a hinge piece provided on the lid body to the hinge body, the lid body can be directly attached to the mouth. In this way, the container body can be formed by a simple process of forming a parison container and blow molding the same,
The lid can be directly attached to the opening of the container body so as to be openable and closable, so that the number of parts can be reduced, the structure can be simplified, and the cost can be reduced.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing a state in which a lid is separated from a hinged container according to an embodiment of the present invention.

FIG. 2 is a vertical sectional view of a hinged container showing one embodiment of the present invention.

FIG. 3 is a perspective view of a parison container showing one embodiment of the present invention.

FIG. 4 is an exploded perspective view of a hinge part showing another embodiment of the present invention.

FIG. 5 is a sectional view of a hinge portion showing another embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Hinged container 12 Mouth 14 Body 16 Container main body 18 Hinge 20 Lid 22 Hinge body 24 Hinge piece 28 Parison container

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 3E033 AA05 BA13 DA02 DA10 DB03 DD01 FA03 3E084 AA04 AA14 AA24 AB09 BA01 CA03 CC03 DA03 DB13 DC03 FA07 FC13 GA06 GB06 HA01 HB03 HD01

Claims (1)

[Claims] 1. A hinged container in which a lid is rotatably attached to a peripheral portion of a mouth via a hinge, and the lid is closed by the lid so as to be openable and closable. Are substantially the same diameter, and at the periphery of the mouth portion, a parison container integrally formed with a hinge body coupled to a hinge piece formed on the lid is formed. A hinged container characterized by being formed by blow molding to form a container body.